P number: | P528125 |
---|---|
Caption: | Muscovite mica split, trimmed and graded as 'No. 1', 'heavy stained' from the Little Scatwell mica prospect, eight miles from Strathpeffer, Ross and Cromarty.. |
Description: | A large specimen of muscovite mica graded 'No 1', 'heavy stained' from Little Scatwell mica prospect, 550 yards north-west of Little Scatwell, eight miles from Strathpeffer, Ross and Cromarty British Geological Survey Petrology Collection sample number MC 7733. The deposit at which this specimen was found is composed of a number of separate outcrops of mica-bearing pegmatite that run along a line east-north-east to west-south-west and are bounded by pelitic schists to the north and siliceous schist to the south, both are Moine (Precambrian) in age. The pegmatite consists of quartz and feldspar, with feldspar predominating and with 'books' of mica up to 20 inches in diameter and two or three inches thick. The great majority of 'books' do not exceed seven to eight inches in diameter. |
Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
Photographer: | Unknown |
Copyright statement: | Unknown |
Orientation: | Landscape |
Size: | 148.27 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
Reviews
There is currently no feedback